Ok, is it really worth it to buy a new Mac Pro in the Apple store vs getting it at a reseller such as Amazon? I'd like to save as much as possible, so no tax and shipping saves me over $200 on the low end Mac Pro alone. My concern is getting the Airport extreme wifi card, but I know its not available in the Apple store and from what I understand, the only way to get it is either by bringing in the Mac Pro to the Apple store to buy the airport extreme card and have it installed by Apple, or by buying it from somewhere like ebay and doing a DIY. I do not prefer the latter option if it goes against warranty, even though it may be easy. But does anyone know how much it would cost to have Apple install it, and if its same day installation? All in all, is it worth it to go through Apple with the Mac Pro, and pay the $200+ in additional tax? Actually, the airport extreme card is the ONLY CTO option that I want to add to the machine because everything else I'll add or upgrade later. So I can't help but feel like thats just so much money just to get the card. Of course, I'm planning all this for the 2010 Mac Pro, which is what I'm saving up for, but I'd like to get someone's opinion on this.